Sarvesh K Verma Solutions for Chapter: Averages, Exercise 1: CAT - Test Questions Helping You Bell the CAT

Rajeev earns $\frac{3}{2}$ times in January, April, July and October than his average earning of $₹600$ per month in the rest of the months. So his savings in the January, April, July and October goes to $\frac{5}{4}$ times that of the rest months saving of $₹400$ per month in the year. The average expenditure of per month is:

The average age of Sachin and Ganguli is $35$ years. If Kaif replaces Sachin, the average age becomes $32$years and if Kaif replaced Ganguli, then the average age becomes $38$ years. If the average age of Dhoni and Irfan be half of the average age of Sachin, Ganguli and Kaif, then the average age of all the five people is :

In a village, the average age of n people is $42$ years. But after the verification, it was found that the age of a person had been considered $20$ years less than the actual age, so the new average, after the correction, increased by $1$. The value of $\mathrm{n}$ is

The average of any 5 consecutive odd numbers a, b, c, d,e,is;

The average length of any four fingers of my left hand is $600 mm$. Then the average length of all the five fingers of my left hand is :

The average income of all the Infosys employees is $₹. 20,000$ per month. Recently the company announced the increment of$₹. 2,000$ per month for all the employees. The new average of all the employees is :

The average price of 80 computers in an electronic shop is Rs. 30,000. If the highest and lowest price computers are sold out then the average price of the remaining 78 computers is Rs. 29,500. The cost of the highest price computer is Rs. 80,000. The cost of lowest price computer is :

Asrani is a superintendent jailor in Ramgarh, who is assisted by $6$ assistant jailors. Each of the seven jailors supervises a certain but distinct number of jail inmates. He has $30$ inmates to look after. Jairaj, another jailor and a close aide of Asrani, supervises an average number of $32$ inmates. Each of the seven jailors has to supervise not more than $45$ inmates. Once Asrani heard a ruckus within the jail premises, and he instructed his assistants that half of them go to his left and half of them go to his right and the rest shall follow him. But, unfortunately, none was left to follow him. Gabbar Singh, a jail inmate, was curious to know that who went left and who went right. When he asked another inmate, Kalia about the same, he got to know that the ones who supervise more inmates than of Asrani went to the left, and the ones who supervise fewer inmates than Asrani went to the right side. What is the maximum possible difference between the number of inmates supervised by any two sailors?